Exercise device



FIG. 1 is a front side perspective view of an exercise device;

FIG. 2 is a side view of the exercise device of FIG. 1;

FIG. 3 is a top view of the exercise device of FIG. 1;

FIG. 4 is a front view of the exercise device of FIG. 1;

FIG. 5 is a rear view of the exercise device of FIG. 1; and,

FIG. 6 is a bottom view of the exercise device of FIG. 1.

The broken (dashed) lines shown in the drawings are included for the purpose of illustrating environmental elements only and form no part of the claimed design. 

CLAIM I claim the ornamental design for an exercise device, as shown and described. 